| 天 |
tiān cì | number of days of sth taking place (e.g. days of heavy pollution) / days / occasions |
| 天 |
tiān | day / sky / heaven |
| 次 |
cì | next in sequence / second / the second (day, time etc) / secondary / vice- / sub- / infra- / inferior quality / substandard / order / sequence / hypo- (chemistry) / classifier for enumerated events: time |